In the scenario where a storage node fails in Huawei OceanStor Pacific, which of the following analysis of the ElasticEC feature write process is wrong? (Multiple choice)

The correct answer is A. When the configured redundancy ratio is N+M, the storage system will definitely write the newly B. When the configured redundancy ratio is N+M, the storage system will shrink the newly written data C. When the configured redundancy ratio is N+M:1, the storage system will definitely write the newly D. When the configured ratio is N+M:1, the storage system will shrink the newly written data to (N-1)+M. See the full explanation below for the reasoning.

Distributed Storage Architecture and Design

Question

In the scenario where a storage node fails in Huawei OceanStor Pacific, which of the following analysis of the ElasticEC feature write process is wrong? (Multiple choice)

Options

AWhen the configured redundancy ratio is N+M, the storage system will definitely write the newly
BWhen the configured redundancy ratio is N+M, the storage system will shrink the newly written data
CWhen the configured redundancy ratio is N+M:1, the storage system will definitely write the newly
DWhen the configured ratio is N+M:1, the storage system will shrink the newly written data to (N-1)+M

How the community answered

(35 responses)

A
100% (35)

Topics

#ElasticEC#erasure coding#node failure#redundancy ratio

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